Ilmenorutile and strüverite from Penikoja, Somero, SW Finland

This paper reports the occurrence of ilmenorutile (niobian rutile) and striiverite (tantalian rutile) in two specimens from the Penikoja pegmatite in Somero, SW Finland. One of the specimens contains strüverite as inclusions in pseudoixiolite, whereas the other specimen shows both ilmenorutile and s...

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Bibliographic Details
Main Author: J. Siivola
Format: Article
Language:English
Published: Geological Society of Finland 1970-12-01
Series:Bulletin of the Geological Society of Finland
Online Access:http://www.geologinenseura.fi/bulletin/Volume42/sgs_bt_042_pages_033_036.pdf